The copy shortcut (Ctrl+C) does not work in the types sidebar when the sidebar is in windowed mode

[op2786]

Version and Platform (required):

• Binary Ninja Version: 4.2.6455-dev, 2c8da1e
• OS: macos
• OS Version: 15.1
• CPU Architecture: arm64

Bug Description:
I would like to copy the member name of a structure from the types sidebar, but it seems that the shortcut doesn't work in windowed mode. Right-clicking and selecting "Copy Name" works, but the shortcut does not. I suspect this may have the same root cause as issue #6153.

Steps To Reproduce:

1. Open types sidebar in windowed mode
2. Try to copy something from it